The Panenka Dragon Leather Sneakears by VEJA Details Upper: Organic Traced leather (O.T.), Panels: Organic Traced leather (O.T.), Insole: Amazonian rubber (11%), E.V.A. bio-sourced (45%, including 36% sugar cane), recycled E.V.A. (13%), organic cotton (5%) and others (26%), Outsole: Amazonian rubber (50%), mineral silica (26%), synthetic rubber (5%) and others>